Mersen USA Holding Corp. 401(k) Review & Grade
Retirement Savings Plan for the Employees of Mersen USA
Boonton, NJManufacturing1,098 active participantsPlan year 2024✓ Auto-enroll
Estimate from the plan's Form 5500 filing · How we grade
$4,988Employer $ per active participant
$7,482Employee $ saved per active participant
0.27%Direct admin cost, % of plan assets
$159.7MNet plan assets, end of year
$101,921Average balance per account
Score breakdown
- Employer generosity41.4 / 5083th percentile for employer $ per participant
- Low cost11.3 / 2545th percentile for low admin cost vs. same-size plans
- Employee saving11.5 / 1577th percentile for employee $ per participant
- Plan features10 / 10Auto-enrollment, Default investment
Total score74 / 100 · Grade B
This plan vs. peers
Peers: Manufacturing plans with 500–2,499 active participants (2,376 plans).
| Measure | Percentile |
|---|---|
| Employer $ per participant | 83th |
| Lower admin cost | 45th |
| Employee saving | 77th |
| Peers that auto-enroll | 59% |
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Red flags from the filing
No red flags were reported on this filing's compliance questions.
What to do if you're in this plan
- Mersen USA Holding put in about $4,988 per active participant, more than the typical peer ($2,320). Contribute at least enough to collect the full match. Skipping it leaves part of your pay on the table.
- The filing shows total dollars, not the match formula. Ask HR for the Summary Plan Description so you know the exact match and vesting schedule.
- Fund expense ratios aren't in the filing. Look them up in your 404(a)(5) fee disclosure and favor low-cost index or target-date funds.
- The plan auto-enrolls employees. Check your default contribution rate. Defaults are often lower than what it takes to get the full match.
- Changing jobs? You can usually leave the money in the plan, move it to your new employer's plan, or roll it into an IRA. Don't cash out: you'd owe taxes and possibly a 10% penalty.
The raw numbers from the filing
| Employer contributions | $5,479,422 |
| Participant (employee) contributions | $8,218,869 |
| Other contributions (incl. rollovers in) | $872,582 |
| Administrative expenses paid from the plan | $398,454 |
| Contract administrator fees | $237,825 |
| Investment advisory & management fees | $129,654 |
| Benefits paid out | $13,322,512 |
| Net assets, start / end of year | $140.1M / $159.7M |
| Active participants, start / end of year | 1,108 / 1,089 |
| Participants with account balances | 1,567 |
| Auto-enrollment (feature code 2S) | Yes |
| Auditor | Cliftonlarsonallen LLP |
Largest service providers (Schedule C)
| John Hancock | $279,248 reported compensation |
| Morgan Stanley Global Banking Ops | $88,213 reported compensation |
| Cliftonlarsonallen LLP | $30,975 reported compensation |
Source: DOL EFAST2 Form 5500 filing, acknowledgment ID 20250826115653NAL0004430771001, received 2025-08-26, EIN 22-0807643, plan #002, plan year 2024-01-01 to 2024-12-31. Verify at efast.dol.gov.